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＜departmental bulletin paper＞
Clay minerals associated with the gold ore deposits of the Okuchi mine, Kagoshima Prefecture
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| Abstract | Ore deposits of the Okuchi mine are epithermal gold-and silver-bearing quartz veins in chloritized two-pyroxene andesite in the Tertiary volcanic formation. Three montmorillonite specimens, one halloy...site, and one sericite, collected in the mine, were examined in some detail by X-ray, differential thermal, and chemical analyses, and infra-red spectra. Although kaolin minerals are common in the Japanese gold ore deposits, in this mine montmorillonite and sericite are predominant.show more |
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0901_p017
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670 KB | 174 |
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| Created Date | 2021.11.18 |
| Modified Date | 2022.10.25 |